Theorie-Palaver

Nov. 6, 2014 at 2:30 p.m. in Sozialraum der WA THEP

Upalaparna Banerjee

Federico Gasparotto

Pouria Mazloumi

Yong Xu

Phenomenology of Induced Electroweak Symmetry Breaking
Ennio Salvioni (UC Davis)


We study the phenomenology of models of electroweak symmetry breaking where the Higgs potential is dominated by a positive quadratic term destabilized by a tadpole. The tadpole arises from the coupling to an ``auxiliary' Higgs sector, which can be either perturbative or strongly coupled.
These models can explain the 125 GeV Higgs mass in supersymmetry without fine-tuning, and predict a rich Higgs physics beyond the standard model.
We analyze the constraints set by the 8 TeV run of the LHC, and give projections for the sensitivity of the upcoming 14 TeV run.
We find that a significant parameter space for such models is currently open, allowing values of the Higgs cubic coupling down to 0.4 times the Standard Model value.
The 14 TeV LHC run will stringently test this scenario, and we identify several new searches with discovery potential.